Hoisting device



. 1,616,380 J. F. LUCAS v HOISTING DEVICE Filed Feb. 24. 1926 3 Sheets-Sheet 1 J 2:27am? mvemoR BY mjw ATTORNEY e A .1.. F. LUCAS HOISTING DEVICE Filed Feb. 24 1926 3 SheetS-rSheet'2 I ATTORNEY I Feb. 1 1927.

J. F. LUCAS HOISTING DEVICE Filed Feb. 24, 1926 s Sheets-Sheet s ATTC' NEY iIiQunison,' andralso whe ein he. e i ng" o thefshaftsj Will jperinit the engine shaft to' drivejdrums having {cables wound there Patented Feb, 1 19 7 I v JOHN LUCAS,- 02E KINSMAN, oHIo.

.Kpplication filed February 24, 1926. Serial No.'90i,91

My present invention has reference to trucksofthe classprovidedwith the pivot; all'yfsupported dumpdoodies and my object is the provision, of ine.ans operate d directly by. the engine-ofthe truck for swinging the;

body to"dumping position.. v o ,7

Afurther objectis the provision of ameans for this purpose'whichican be 'readilygatw tached to the chassis, and 7 engine of any small typeuoif trucks and especially to that type .known to. the tradeas Fordtrucks.

A stilLfurther object; is to" arrange between the drive and ,driven shafts ofan,

automobile engine anauxiliary shaft which is at, all times. connected to the drive shaft, anclori Whichthere'is a slidable collar for;

clutching engagementjwith the driven shaft when hf h fiea e tote turn d.

n nd. and wh c a e tr d ov tpmley on an upright. and "are lconnected tothe for- Ward end'of thetru'ck body, andflyvher e l y the said :bodyegmpbethus swung tedumnmg position.

T ,'the.at ta. n1 hent of the foregoing broad; yet dd i ts nd, me y the s h hwi l.

appear asyth'e-i nature, for, the ijnyention; is i better understood, the; improvement; further consists 'inljcertain novel features 7 conet en; omh nat sand v pentire h s:

. mentl' of; a w ich; isn li v le ed-l y sociation],ot'parts, va satisfactory embodi;

mpe y e drawings. a V

n l hei d taw nge isi the application of; my improvement, lparts' beingj-broken, away. l

e t iwk. cha s is fie ent t i lustrat 1 2? improvemen th e n f F re e y i" eeii ie i w; approximately, ion the. ine ;-3 of;

are, F g re 3- Figurefi is a; sectional view on the line;

5-:5 of ,EigureB,

center, =at,.3, on the .Qh lSQ' Q lh f i k body 2, i at the. forward and .lower lco'rner heme a swine th r n e were 4 ing's 20,,-

brackets 4,"Whil6 mounted on the chassis, directly forward"of-thesaidenddf the truck body there arethe uprights of a hamlet; jThe frame has a shai'tfi atthe upperpor I 1tion thereof and journal led on this, shaft- :7 there are grooved Wheels 7. A strong flexible element or cable 8 is secured to' the k t? and is trained o e -p1 p ved vheels 7. TheKcablgg g r c -r trained Over ved Wheels 01 Pulleys f9 i that have, their shafts journaled in? able bearings supported on'jthefsidemembers of the chassis and frolnthence are trained around andysecuredon drums 10;70 thatare fixed 011a shaft ll. supported: in" a manner which will presently be described, belowvthe chassis,v V 1;

The axle drive shaft .12 is "encased in the, usual housing l3 and has at itsfor vvard end the. Usualuniversaljoint 15; ,The joint is} of course, suitably housed. In the present tance-L119 u r o if rmrd i il e t n has; associated therewith; a ""stub; shaft 16',

he s id shaft; evol in e-11nd; f b le e ings '1 7fprov ided in a raceway in Jtheiouter end ofthe front housing section 1 8; for the: niv salljo v 1; in r The ub end of thejoint housing section 18 isthreaded and has screwed thereon a' tubular member 19. This end of the tubu-l lar member 19 is received ina bearing opena ing n one f; h c o beamse h he sis and sr ov ed up it upp r. n jlQi f faces with f aligning Y longitudinal op; n feo The engine drive indicated the numeral'Ql, and in the socketend there-Q of there is r'eceived -the squared end*2 2 of;

I a'shaft memberf23, Theshaftis' inalign-" -Ei u' .1 a qpipl i of e p rt o r i,

ment with thestubsh'a'ft1l6, 7 but isgnotinj: contact erewith, th re being; w ve a. loose connection j between these shafts; This connectionispreferably inithe nature of apin orshort shaftQel which is centrallyj sliaft23. n.1 v The forwardrvend otthe tubularfhousing 19' is offset-and vformed {with interior threads 1 I 3 to engage'the threaded ends .'25 fon aiWo-pfirtf VReferring now to thedraynngs 1n deli; tail, the numeral l (designates the chassis an ordinary Qtruoki. and; 2" the v dumping body; which ,is v pivotally supported. loey'ond its,

housing 26. The housing'lias its upper por-T tion .rounded to corresponddto the shape of i the tubular member or. housing" 19 a n'd its; forward end is bolted 'or otherwise; secured:

to the. outer end of the transmission ,casingf 27, through which the; engine; shaft 21.; ex; tends, The sections comprising. the housing;

v26 have" at their confronting ends outstandsecuring means, such asbolts 28 which are ing earsand lugs through which are passed engaged by the usual nuts. The-tubular portion of the housing has annular depressions for the outer elements 29, of race-ways L for antifrictional'balls 30, the inner elements 'ofthe said raceways, indicated by the numeral;31,fbeing,carried on the reduced and I shouldered endv of a worm screw 32. V The housing 26 is also provided with a race-way "the shaft23;

' 5 .The drum for 1 anti-frictional rollers 33 that engage 'tion of the. housing 26 and the said shaft has fixed-thereon a worm wheel 34 which is received in the housing 26, and which is in mesh with the worm screw 32.

What I will term the rear end of the worm screw 32, that is, the end thereof neariest the driven shaft 12, .is formed with a clutch surface provided by notching the said 'wormscrew and forming fingers 35 between said notches. The forward end of thestub shaft 16 is likewise notched, as at 36. Slidable on the shaft 23, between the worm screw 32 and the stub shaft 16 there is aclutch sleeve 37. Both ends of this sleeve are notched to provide spaced fingers 38 and 39; The clutch sleeve 37 has an angle groove therethrough, in which is seated a ring 'member 40 provided with stub shafts 41that pass through the respective openings 20. I These stub shafts 41 and received through the ends of a yoke 42, the said yoke being fixed on an arm 42, one of whose'ends is provided with pins 42' that are received through van elongated slot in one end of the angle lever 43. In order to prevent the entrance of dirt and other foreign matter v 46 of the chassis.

through the rod 42, the yoke 42- and through the openings 20 there is secured on the housing 19 a protector casing 52'. The lever is pivoted, as at 44, on a supporting bracket 45 fixed to the'transverse brace member The outer end of the lever 43 is extended beyond one side of the frame or chassis and has secured thereto a rod, or if desired, a flexible element, 46 which in turn is secured to the lower end of a lever 47. This lever is pivotally supported, as at 48, on abracket 49 that extends from the base of a segmental rack 50, the said rack being fixedly secured to one of the side members of the chassis. The lever i 47 carries a handle operated spring influenced dog or detent 51 to engage with the shaft 16, is formed with spaced longitudinal 1 grooves that providefingers 52 therebetween teeth of the rack 50, a V

The end ofthe shaft-23, nearest the stub and these grooves are'at all times engaged bythe fingers 39 on the clutch sleeve 37; When the' part's are in the position shaft 11 is journaled in bearing openings in the sides of the lower por- 7 turns.

"tion the drive shaftjis disconnected there- 7 from, and the worm is revolved to turn the worm wheel which imparts motion to the drumlO to wind the cables 8 thereon and thereby raise the truck body 2 to a desired therefromj The cable may be again wound onv the drums, when the body is returned to normal position by shifting the gears in the usual'manner, to reverse the turning of the shafts 21 and23, when the drive '31: angle to cause the contents to gravitate shaftis' still declut'ched. The anti-frictional elements 30'compensate for any end thrust on the worm and likewise provide anti-frictional bearings on which the said worm The anti-frictional rollers 17 and 33 insure the free turning of the universal housing and the shaft 23 in the h0using26 and it is believed that the'foreg'oing description when carefully read in connection 'withvthe accompanying drawings, will fully set forth the construction and advantages of my improvement. I f V Having described the invention, I claim 1. Thecombination with a motor driven truck having a pivotally supported body thereon, of a meansffor swinging the'body to dumping position by the operation of the motor of the truck, said means including a stub shaft having a clutch surface, which is connected to the universal joint associated with the axle drive shaft, anauxiliary shaft connected to the motor shaft, in a rline with but out of contact with the stub, shaft, means, comprising a pin, entering the confronting ends of the auxiliary and the stub shafts .7 for holding the same in alignment, a clutch sleeve having a' spline engagement with the auxiliary shaft and arranged for movement over one end thereof, a Worm screw out of contact with andjournaled' around the stub shaft, combined thrust and anti- 3 frictional bearings'for the worm screw, antifr'lctional bearlngs for the stub shaft'and for the auxiliary shaft, a worm Wheel meshing with theworm screw, drum means on the shaft of the worm screw, fiexiblerelements secured to and wound around said drums, elevated guide means for the flexible,

elements and said elements having oneof their ends connectedto the front of the dump body, and lever operated meansfor moving the clutch sleeve to bring the same into clutching engagement with the worm screw, or into clutching engagementgwith the stub shaft when the said sleeve has been moved away from the worm screw.

2. The combination with a motor driven truck having a pivotally supported dump body thereon, of a means for dumping the body by the operation of the motor shaft, said means comprising a clutch carrying stub shaft associated with the axle drive shaft of the motor, a housing therefor, anti-frictional bearings between the housing and stub shaft, an auxiliary shaft connected directly to the motor shaft, means comprising a pinion received in the confronting endsof the auxiliary and the stub shafts for holding these shafts in alignment but out of contact with each other, a clutch sleeve having a spline engagement with the auxiliary shaft and movable over one end of said shaft, a worm screw received around but out of contact with the auxiliary shaft, anti-frictional bearings between the housing and the mix iliary shaft, combined thrust and anti-fricof said frame over which the cables are trained, eye carrying brackets on the lower and forward corners of the body to which the cables are connected, a lever, means operated by the lever for sliding the clutch sleeve to bring the same into clutching engagement with the worm screw or to bring the same into clutching engagement with the stub shaft when away from the worm screw, and means for locking the lever from movement when the clutch sleeve is in either of its said positions.

In testimony whereof I aifix my signature.

JOHN F. LUCAS. 

